It’s just a rail and tourist travelogue, nothing controversial.
There’s sure to be controversy over that “FASTEST IN THE WORLD” in the thumbnail when he’s only claiming 350 km/h… 
I don’t think that there a faster high-speed trains in revenue service currently.
The Chinese CR450 with a top speed of 450 kph and an operating speed of 400 kph is still being tested.
If Google AI is to be believed (but with reservations), the operating speed will initially only be 350 kph, as the infrastructure is not supposed to allow 400 kph.
Regards, Volker
At least for the fellow (unknown nationality) on this train there weren’t any obvious vibration issues.
I think that was maybe the Maglev train he rode previously?
I was noting only that many types of HSR equipment are designed for 350 km/h; China was at one point trying to distinguish its newer equipment to be 380 km/h (and if this were propaganda that’s the number I’d have expected to see)
Strange that a station as ginormous as Shanghai only shows references to one track, and tremendous room around that one track – but there are multiple trains arriving and departing in a short timeframe on that track.
As a note, I think the kind of track configuration that excites the vibration mode described in the Chang paper can be seen briefly around 7:20 in the video: effectively multiple crossovers passed at high track speed. I do not see any remarkable dynamics (although I did in his shots of the maglev!) so I tend to believe Chang’s explanation of multiple synergistic factors.
I had to smile at his saying it was ‘the future’ to be able to order food online and have it delivered to the train at particular stations. Dave Klepper and I strongly believe this ought to be developed for Amtrak trains… note here that the travel time is about 4 hours and he was hungry 2 hours into the trip, which is why ‘joint ventures’ including ghost kitchens should be encouraged here even for ‘corridor-length’ trips…
I suppose one or two Shanghai tracks are dedicated to various HSR services which I think include trains to Beijing, Nanjing (en route) and Hangzhou.
Yes I recall the concept you and Dave Klepper had about en rout deliveries. Maybe it could work here, especially with our typical 10 minute dwells!
According to the youtube channel the video is linked to he boarded the train at Shanghai Hongqiao Railway Station. The station is located near the international airport. Is has 14 island platforms and two side platform an serves 5 high-speed rail lines.
Wikipedia entry: Shanghai Hongqiao railway station - Wikipedia
Wiki says that almost tracks are used for G and D class trains. Both are High-speed Train classes: G class trains are up to 350 kph fast and operate on ballastless track, D class trains up to 250 kph operating on ballasted track (Google KI).
Photos of Shanghai Hongqiao railway station: Trains at Station
https://en.people.cn/NMediaFile/2019/0219/FOREIGN201902191431000428321934148.jpg
Track plan: https://live.staticflickr.com/4136/4765816843_db769338e6_b_d.jpg
Regards, Volker
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Shanghai to Beijing, Hongzhou, Huzhou, Nanjing and Natong.